Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk LS-HT LH Long Shank Hand Taps for Left Hand Threads Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Stock (for blind hole) Spiral Fluted Taps (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes M12 × 1.5 P2 TNMQ012O115L 1.5P 150 26 - 50 8.5 6.5 9 4 2 △ TNMQ012N515L 5P M12 × 1.25 P2 150 26 - 50 8.5 6.5 9 4 2 △ TNMQ012N115L 1.5P TNMQ014Q515L 5P (for through hole) Spiral Fluted Taps M14 × 2 P2 150 26 - 60 10.5 8 11 4 2 △ TNMQ014Q115L 1.5P TNMQ014O515L 5P M14 × 1.5 P2 150 26 - 60 10.5 8 11 4 2 △ TNMQ014O115L 1.5P TNMQ016Q515L 150 (for through hole) Spiral Pointed Taps 5P TNMQ016Q520L 200 M16 × 2 P2 26 - 60 12.5 10 13 4 2 △ TNMQ016Q115L 150 1.5P TNMQ016Q120L 200 TNMQ016O515L 5P M16 × 1.5 P2 150 26 - 60 12.5 10 13 4 2 △ Hand Taps TNMQ016O115L 1.5P TNMR018R515L 5P M18 × 2.5 P3 150 33 - 70 14 11 14 4 2 △ TNMR018R115L 1.5P TNMQ018O515L 5P M18 × 1.5 P2 150 33 - 70 14 11 14 4 2 △ Carbide Taps Cemented TNMQ018O115L 1.5P TNMR020R515L 150 5P TNMR020R520L 200 M20 × 2.5 P3 33 - 70 15 12 15 4 3 △ TNMR020R115L 150 1.5P TNMR020R120L 200 Roll Taps TNMR020O515L 150 5P TNMR020O520L 200 M20 × 1.5 P3 33 - 70 15 12 15 4 3 △ TNMR020O115L 150 1.5P TNMR020O120L 200 TNMR022R515L 150 Simple Inspection Tools Special Thread Taps 5P TNMR022R520L 200 M22 × 2.5 P3 33 - 70 17 13 16 4 3 △ TNMR022R115L 150 1.5P TNMR022R120L 200 TNMR024S515L 150 Pipe Taps 5P TNMR024S520L 200 M24 × 3 P3 39 - 80 19 15 18 4 3 △ TNMR024S115L 150 1.5P TNMR024S120L 200 TNMR027S520L 5P Thread Mills M27 × 3 P3 200 39 - 80 20 15 18 4 3 △ TNMR027S120L 1.5P TNMS030T520L 5P M30 × 3.5 P4 200 46 - 80 23 17 20 4 3 △ TNMS030T120L 1.5P Dies Center Drills Centering Tools JIS ◎=Standard ○=Semi standard △=Made to order HT-30 For improvement, spec may change without advance notice. 455